Exposure to Lead, Mercury, or X-Rays During Pregnancy Is Associated

question 135

Multiple Choice

Exposure to lead, mercury, or X-rays during pregnancy is associated with an increased risk of

• A)cognitive delay.
• B)premature birth.
• C)facial deformities.
• D)poor motor control.

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Definitions:

Ependymal Cells

Ependymal cells are a type of glial cell that lines the ventricles in the brain and the central canal of the spinal cord, involved in the production of cerebrospinal fluid.

Cerebrospinal Fluid

A clear, colorless body fluid found in the brain and spinal cord, providing cushioning and maintaining a stable environment.

Astrocytes

Star-shaped glial cells in the brain and spinal cord, supporting neurons, regulating neurotransmitter levels, and maintaining the blood-brain barrier.

Glial Cells

are non-neuronal cells in the central and peripheral nervous systems that provide support and protection for neurons, playing key roles in brain function and health.